PERFLUOROPOLYETHERS, AND A PROCESS FOR THE PREPARATION OF THE SAME

摘要

Perfluoropolyether comprising, besides -CF2- and -CF2F4 units, also a third fluoroalkylene unit containing three or more carbon atoms, said units being connected to each other through -O-ether bridges, and process for obtaining above said polyether, consisting in reacting a mixture of polyperoxidic perfluoropolyether and a fluorinated olefin, in the presence of U.V. radiations.